#main{
  position: relative;
  margin: 0 auto;
  padding: 20px 30px;
  width: 600px;
  background: #dddede;
  border: 1px solid #ccc;
}
#prev, #next{
  position: absolute;
  top: 132px;
  width: 18px; height: 31px;
  text-indent: -99999px;
  cursor: pointer;
}
#prev{
  left: 5px;
  background: url(electronic_files/prev-arrow.png) no-repeat 0 0;
}
#next{
  right: 5px;
  background: url(electronic_files/next-arrow.png) no-repeat 0 0;
}
#wrap-slider{
  position: relative;
  overflow: hidden;
  background: #fff;
}
#slider{
  position: absolute;
  left: 0; top: 0;
}
